Search Results       Your search for [subject]Potassium fertilizers -- Philippines returned 1 record.           The effect of potassium fertilization and cropping on the exchangeable and soil solution potassium. by Merestela, Tessie M., 1953-; Subject: Potassium fertilizers -- Philippines; Cropping systems -- Philippines; Soils -- Philippines -- Potassium content.          Add to Book Cart Relevance: 19.38%